User manual

Mixed Signal Option (MSO, R&S RTO-B1)
R&S
®
RTO
337User Manual 1316.0827.02 ─ 06
11.3.4.5 Data2Clock
The Data2Clock trigger event occurs when the state of the trigger source signal changes
inside a given time before the clock edge (setup time) or after the clock edge (hold time).
This trigger type is also known as setup/hold trigger. The trigger event occurs at the clock
edge for which the setup and/or hold time was violated.
With Data2Clock trigger, you can trigger on a single digital channel, or a parallel bus to
check several digital channels simultaneously. The clock signal is connected to one of
the digital channels.
Fig. 11-5: Data2clock trigger settings
Clock source
Selects the digital channel of the clock signal.
SCPI command:
TRIGger<m>:PARallel:DATatoclock:CSOurce[:VALue] on page 744
TRIGger<m>:PARallel:STATe:CSOurce:VALue on page 744
TRIGger<m>:PARallel:SPATtern:CSOurce[:VALue] on page 744
Clock edge
Sets the edge of the clock signal. The crossing of the clock edge and the logical threshold
defines the time reference point for the setup and hold time measurement.
SCPI command:
TRIGger<m>:PARallel:DATatoclock:CSOurce:EDGE on page 748
Setup time
Sets the minimum time before the clock edge while data should be stable and not change
its state.
The setup time can be negative. In this case, the setup interval starts after the clock edge,
and the hold time starts after the setup time has expired. Thus, the hold time is always
positive. If you change the negative setup time, the hold time is adjusted by the instru-
ment.
SCPI command:
TRIGger<m>:PARallel:DATatoclock:STIMe on page 748
Hold time
Sets the minimum time after the clock edge while data should be stable and not change
its state.
Reference for MSO